摘要
通过对含硫化铁结核薄煤层采煤机工作机构实际工况的分析,建立了复杂煤层条件下采煤机滚筒的受力模型,利用Matlab软件编制了滚筒瞬时负载的模拟程序;生成了滚筒瞬时负载的文本文件,并将其成功地导入机械系统运动学和动力学仿真软件ADAMS环境下建立的采煤机截割部刚柔耦合虚拟样机系统中,为定量研究采煤机截割部工作的可靠性提供了条件,使复杂煤层赋存条件下的薄煤层实现综采成为可能.研究结果表明,利用Matlab能准确地模拟复杂地质条件下采煤机工作机构遇到大块、硬结核体时滚筒瞬时负载的剧烈变化;Matlab文件操作函数生成负载文本的方法,能有效处理具有非线性、时变性、强耦合的复杂载荷问题.
Based on the analytical study on the actual working condition of working mechanism of the shearer in containing pyrites and thin coal seam, the lode model of shearer drum was founded, the simulation programme of drum momentary load was worked out by the implementation of Matlab; the momentary load files of shearer drum were created and leaded successfully in the coupled rigid-flexible virtual prototype model of shearer＇ s cutting section which was built in ADAMS, it provided conditions for quantitative study on the reliability of shearer＇ s cutting section and made it possible implementing fully mechanized mining in complex thin coal seam. The results of research indicate that it is able to simulate exactly the acute variety of drum momentary load when working mechanism of the shearer impacted agglomerate and rigid pyrites under complex geological conditions; the issues of complex load which took on non-linear, time-variant and strong-coupling characteristic can be dealed availably with by the method of load files which are created by the implementation of Matlab＇ s function about files handling.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2009年第6期840-844,共5页
Journal of China Coal Society
